Located centrally in Sukhumvit you're right near a major shopping complex, Em Quartier. It's located right next to a train station which makes getting anywhere in Bangkok easy. To the west is Terminal 21, and to the east is Ekkamai a great night location.
This apartment has two freakin' bathrooms which is totally amazeballs. I don't even know why there are two. Plus there's a washing machine. Seriously you couldn't go wrong staying here. There's also a lift so you don't always have to take the stairs.
The owner was always quick with communication, and graciously allowed me to extend my stay a week and a day because I was so impressed.